Interactive effect of UV radiation and CO2 treatment on extractable volatile organic compounds from European beech leaves

0485205 - ÚVGZ 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Večeřová, Kristýna - Pernicová, N. - Klem, Karel - Urban, Otmar
Interactive effect of UV radiation and CO2 treatment on extractable volatile organic compounds from European beech leaves.
Quo vaditis agriculture, forestry and society under global change? Conference proceeding. Brno: Global change research institute, 2017 - (Urban, O.; Šprtová, M.; Klem, K.), s. 33-37. ISBN 978-80-87902-22-6.
[Quo vaditis agriculture, forestry and society under Global Change? Velké Karlovice (CZ), 02.10.2017-04.10.2017]
Grant CEP: GA MŠMT(CZ) LO1415; GA MŠMT(CZ) EF16_013/0001609
Institucionální podpora: RVO:86652079
Klíčová slova: UV radiation * CO2 treatment * European beech
Obor OECD: Meteorology and atmospheric sciences

The main objective of this experiment was to investigate the combined effect of different UV treatments
and elevated CO2 concentration on monoterpene and methyl salicylate (MES) content in leaves of
European beech during the growing season. Plants were grown under ambient (AC, 400 μmol mol–1) and
elevated (EC, 700 μmol mol–1) CO2 concentrations and three UV radiation treatments (ambient – UVamb,
excluded – UV-, and enhanced – UV+). Leaves collected from July to September were extracted in cold
heptane to determine volatile organic compounds content using gas chromatography. Our results show
that AC plants had higher total content of extractable monoterpenes and MES than did EC plants over
the whole growing season and irrespective of UV treatment. Limonene, 2-bornene, and ester MES were
the most abundant volatile compounds in beech leaves. The highest contents of 2-bornene and MES were
found under the UV- treatment and AC. Contents of α-pinene, β-pinene, and carene decreased during the
growing season while the content of limonene increased.
Trvalý link: http://hdl.handle.net/11104/0280277